A cylindrical item with or without flange(s), designed to be inserted in a pump casing or secured to the impeller of a centrifugal pump. It is used for the purpose of providing a close running clearance between the impeller and casing in order to prevent or overcome leakage due to erosion. It may also be used as a diffuser ring in the suction and discharge throats of valves.
Classification: Parts of turbojet and turbopropeller aircraft engines, other than for use in civil aircraft
NSN 5999-01-186-0390
NSN 6620-01-116-3983
NSN 6130-00-317-3054
NSN 5895-01-501-4885
NSN 6610-00-686-1557
NSN 5950-01-069-4838
NSN 5945-00-334-1228
NSN 6240-01-301-5412
NSN 6135-00-871-3646
NSN 5910-01-616-7145
NSN 5835-00-153-4100
NSN 5996-01-650-0067